POLARISER Russian patent published in 2014 - IPC H01P1/16 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to antenna engineering and can be used in broadband antenna system radiators operating on circularly polarised waves. The polariser comprises a first waveguide section having one element designed to convert a linearly polarised wave into a circularly polarised wave or vice versa, the longitudinal axis of symmetry of which is parallel to the longitudinal plane of symmetry of the first waveguide section, and a second waveguide section connected to the first waveguide section and having a common axis of symmetry with said first waveguide section. The second waveguide section has one dead-end cylindrical opening. A cylindrical long element, which passes inside the waveguide and is made of conducting material, is coaxially placed in the opening. The axis of the opening lies in the longitudinal plane of symmetry of the one element designed to convert a linearly polarised wave into a circularly polarised wave or vice versa.

EFFECT: reducing the level of cross-polarisation by reducing deviation of the magnitude of the differential phase shift of orthogonal linearly polarised waves of the polariser from 90° in a wide frequency range.

18 cl, 6 dwg